by Bob Nightengale, USA TODAY Sports

by Bob Nightengale, USA TODAY Sports

ARLINGTON, TEX.AS -- The Texas Rangers, who helplessly watched the Oakland Athletics race past them a year ago down the pennant stretch, are trying to ensure it doesn't happen again.

The Rangers acquired Chicago Cubs ace Matt Garza on Monday for three of their prized prospects, strengthening a rotation that has been affected by injuries.

"He's one of the better big-game pitchers in the game," Rangers general manager Jon Daniels said. "He's throwing the ball as well as anybody."

Indeed, Garza is 5-0 with a 1.24 ERA in his last six starts. He's scheduled to join the Rangers today and start Wednesday against the New York Yankees.

"He's an extremely talented pitcher," Daniels said, "and he's had success in the toughest divisions and on the biggest stages."

Garza not only has postseason experience but a track record of excelling in the American League. He spent five years in the AL and was a 15-game winner in 2010 before being traded to the Cubs. The Cubs planned to trade him last July, but Garza injured his shoulder before the deadline. Garza opened the season on the DL with a strained back muscle but went 6-1 with a 3.17 ERA in 11 starts.

The Cubs, who are building toward being a contender in 2015, obtained pitchers Justin Grimm and C.J. Edwards, third baseman Mike Olt and a player to be named. Edwards, 8-2 with a 1.83 ERA at Class A Hickory (N.C.), is considered the centerpiece of the package.

The Rangers, who lost their first four games after the All-Star break, now think they have a rotation that will enable them to win their third AL West title in four years.

"It gives our club a chance to get into the tournament and see where it goes," Daniels said.

Garza is eligible for free agency at the season's conclusion, and the Rangers are expected to try to sign him to an extension.

The Cubs have had a busy month. They already parted ways with outfielder Scott Hairston, who was dealt to the Washington Nationals, right-hander Scott Feldman, who was sent to the Baltimore Orioles, and right-handed reliever Carlos Marmol, who was traded to the Los Angeles Dodgers.